Certain investigations on optical millimeter wave generation

Abstract

In recent days the emergence of high speed wired and wireless data transmission for broadband applications has accelerated the advancement in the field of optical fiber technology. Data transmission in the form of light has significant advantages including increased data rate, resistance to electromagnetic interference, high data security and immunity to cross talk. The exponential rise in the number of broadband users and the subsequent data transmission with the use of microwave as a carrier frequency has contributed to channel congestion due to the availability of limited bandwidth. The millimeter (mm) wave frequency is a potential domain that enables to replace the microwave range due to the presence of wide bandwidth and its combination with optical fiber technology achieves high speed secured communication in the modern environment. A combination of photonics technique with mm wave delivers high speed data and high quality video service in Giga bit per second (Gbps) to enable the growth of Radio over Fiber (RoF) based optical wireless networks. In this work five novel methods using Mach Zehnder Modulator (MZM) are introduced to generate mm wave carrier frequency from microwave range by using frequency multiplication process. The objective of this research is to design robust and cost effective models which generate optical mm wave frequencies with low cost, reliability and ease of maintenance. A number of optical mm wave generation techniques to carry information effectively are developed by the researchers, therefore a survey is carried out to analyze the different carrier tupling frequencies which can perform error free long distance transmission of information with better data rate without compromising on the quality of the signal. According to the existing methods for the generation of mm wave in the optical domain, a comparative analysis is presented to gain insight in the generation of mm wave. Based on the survey we have developed a system using single Lithium Niobate (LiNbO3) MZM for optical mm wav